Closure for vessels



(No Model.)

J. B. MGNABB. oLosURB PoR vEssELs.

No. 483,575. Patented 001;. 4, 1892.

Fig. I.

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'ma Noms neas co., murmura NITED STATES PATENT OFFICE.

JEHU B. MNABB, OF SALEM, OHIO.

CLOSURE FOR VESSELS.

SPECIFICATION forming part of Letters Patent No. 483,575, dated October4, 1892. Application filed february I6, 1892. Serial No. 421.725. (Nomodel.)

To a/ZZ whom, it may concern.-

Be it known that I, J EHU BIMCNABE, a citizen of the United States,residing at Salem, in the county of Columbiana and State of Ohio, haveinvented a new and useful Closure for Vessels, of which the following isa speciication.

This invention relates to closures for packing and storing vessels; andit has for its object to provide an improved closure adapted for use inconnection with glass and earthen jars, as well as cans and othervessels used for canning or preserving any article desired, and it hasfor its object to provide an improved device which will hermeticallyclose the mouth of the vessel.

Vlith these and many other objects in view, which will readily appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination, and arrangement of partshereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure l is a vertical sectional View ofmy improved device applied to a can or other metallic vessel. Fig. 2 isa similar view as used upon an earthen or glass vessel.

Referring to the accompanying drawings, A represents a suitable vesselhaving the threaded mouth or neck B, extending above the same. At thebase of said exteriorlythreaded neck, or at the junction of the samewith the top of the vessel, is formed adeeplyindented groove C, whichgroove is designed to receive the exterior luting or packing D, whichmay be sealing-wax or other material which may be placed in the groovein a soft and pliable condition and afterward harden firmly in its seat.An ordinary screw-cap E snugly engages over the eXteriorly-threaded neckand has its lower edge when the cap is screwed down touch the bottom ofsaid deep annular groove C, thereby having the outer edge of the grooveextending materially above the plane of the bottom of said screw-cap.The screw-cap is first screwed tightly down upon the neck and into saidgroove, after which the external luting or packing D is run into saidgroove and completely fills the same and surrounds the lower end of thescrewcap up to a point flush with the top of the groove, so that thevessel is not onlyperfectly sealed, but the packing sealing the same isexposed, so that it can be readily dug out of the groove to remove thecap without inj nring the cap itself or the neck of the vessel, which isan important point of advantage over similar devices having the packingconcealed. Thus it will be readily seen that when the luting or packinghardens the same entirely incloses the entire lower edge of thescrew-cap and upon the outside of the same, so that the said cap will beheld tightly in engagement with the threads of the neck and effectuallyprevented from loosening or leaking.

The inner and outer sides of the groove C converge toward the bottom ofthe groove, and the lower plain flange F at the bottom of the cap isflared, as sho wn, primarily, to avoid and pass over the threads uponthe outer surface of the neck; secondarily, to lie close to and incontact with the inner side of the groove O, and, finally, to preventthe withdrawal of the cap while the sealing material is in place in thegroove.

The first and second objects which I have named for flaring the ange atthe bottom of the cap will be readily understood, and the third object,which is of more importance than the other two, will be understood whenit is noted that by this arrangement the sealing material is depositedupon the upper side of the ange, and therefore, even if the adjoiningsurfaces of the seal and the liange become loosened or separated,the capcannot be removed by unscrewing. In both figures of the drawings thisfiared fiange is shown.

I desire to have it clearly understood that I do not claim, broadly, thefeature of a cap provided with a flared lower edge, for I am aware ofsimilar devices in which are employed flared flanges to bear upon andcompress the sealing material; but inasmuch as I preferably employ aliquid sealing-wax or cement I have found my improved arrangement to. bea safeguard against the influx of air and the indiscreet or prematureremoval of the cap.

The liange of the cap lies in close contact with the inner side of theannular groove, thereby preventing the sealing material from penetratingbetween the same, and the sealing material lies upon what in its liaredor in- IOO in Contact with its inner inclined side, and sealing materialdisposed in the groove upon the upper and outer side of said flange andin Contact therewith, whereby the removal of the cap prior to thedisplacement of the sealing material is prevented, substantlally asspecified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature 1n the presence of two witnesses.

JEHU B. MCNABB.

Witnesses:

E. E. HANNA, CHARLES MOMILLAN.

